import type {
  FoodItemDto,
  FoodLibraryResponseDto,
  GetFoodByIdParams,
  SearchFoodsParams
} from '@/types/food';
import { api } from './api';

export interface CreateCustomFoodDto {
  name: string;
  description?: string;
  caloriesPer100g?: number;
  proteinPer100g?: number;
  carbohydratePer100g?: number;
  fatPer100g?: number;
  fiberPer100g?: number;
  sugarPer100g?: number;
  sodiumPer100g?: number;
  additionalNutrition?: Record<string, any>;
  imageUrl?: string;
}

/**
 * 食物库 API 服务
 */
export class FoodLibraryApi {
  private static readonly BASE_PATH = '/food-library';

  /**
   * 获取食物库列表
   */
  static async getFoodLibrary(): Promise<FoodLibraryResponseDto> {
    return api.get<FoodLibraryResponseDto>(this.BASE_PATH);
  }

  /**
   * 搜索食物
   */
  static async searchFoods(params: SearchFoodsParams): Promise<FoodItemDto[]> {
    const { keyword } = params;
    if (!keyword || keyword.trim().length === 0) {
      return [];
    }

    const encodedKeyword = encodeURIComponent(keyword.trim());
    return api.get<FoodItemDto[]>(`${this.BASE_PATH}/search?keyword=${encodedKeyword}`);
  }

  /**
   * 根据ID获取食物详情
   */
  static async getFoodById(params: GetFoodByIdParams): Promise<FoodItemDto> {
    const { id } = params;
    return api.get<FoodItemDto>(`${this.BASE_PATH}/${id}`);
  }

  /**
   * 创建自定义食物
   */
  static async createCustomFood(data: CreateCustomFoodDto): Promise<FoodItemDto> {
    return api.post<FoodItemDto>(`${this.BASE_PATH}/custom`, data);
  }

  /**
   * 删除自定义食物
   */
  static async deleteCustomFood(id: number): Promise<void> {
    return api.delete(`${this.BASE_PATH}/custom/${id}`);
  }
}

// 导出便捷方法
export const foodLibraryApi = {
  getFoodLibrary: () => FoodLibraryApi.getFoodLibrary(),
  searchFoods: (keyword: string) => FoodLibraryApi.searchFoods({ keyword }),
  getFoodById: (id: number) => FoodLibraryApi.getFoodById({ id }),
  createCustomFood: (data: CreateCustomFoodDto) => FoodLibraryApi.createCustomFood(data),
  deleteCustomFood: (id: number) => FoodLibraryApi.deleteCustomFood(id),
};